Airtac Adjustable Cylinder SAIJ32 SAIJ32AX475-20
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX475-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 475mm stroke, G1/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ32 mm
- Stroke475 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX475-20
The AirTAC SAIJ32X475-20 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to fine-tune the end-of-travel position during commissioning. With a nominal 475 mm stroke and a 20 mm adjustment range, it provides a usable travel window between 455 and 475 mm. This eliminates the need to swap cylinders or bolt on external stoppers when aligning a new fixture. It delivers 402 N of push force at 0.5 MPa and features an SUS420J2 stainless steel rod for improved corrosion resistance.
The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement, though this specific SKU is configured without a magnet. It uses a PT G1/8 port and achieves a standard operating speed of 30-800 mm/s. The rear adjuster functions strictly as a travel stop to set deceleration limits, not as a locking mechanism, meaning it cannot hold a load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX475-20 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX475-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 475 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 27 mm |
| Max stroke | Up to 1000 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac Adjustable Cylinder SAIJ32 SAIJ32AX475-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×475 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX475-20 Is Used
Machine Changeover
Dial in the 455-475 mm travel window during product size changes to set new end-stops without replacing the cylinder.
Fixture Alignment
Fine-tune the rear stopper at commissioning to perfectly align clamping fixtures without adding external stopper blocks.
Variable End Positioning
Adjust the effective stroke on the fly for processes requiring slight variations in end-of-travel positioning.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX475-20 the Right Cylinder?
Choose this 32 mm bore when you need precise end-position tuning in a compact footprint, delivering 402 N push force at 0.5 MPa. If your application requires greater thrust, stepping up to the 40 mm bore increases push force to 628 N. The adjustable 455-475 mm travel window is ideal for machine setups requiring variable end-stops or product changeovers, offering flexibility that a fixed-stroke SAI cylinder cannot provide. Because the 475 mm stroke creates an extended lever arm, an external guide is recommended to prevent excessive side-loading on the 12 mm rod.
For an exact ISO 15552 replacement, match the 32 mm bore, 475 mm stroke, 20 mm adjustment, PT G1/8 port, and SUS420J2 rod material. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2. If your process requires the load to be held mechanically without continuous air pressure, a plain SAIJ is insufficient; consider an AirTAC SAIL or BSAI locking cylinder instead.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX475-20 FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. It can deliver up to 724 N of push force at 0.9 MPa.
The rear adjuster acts as a mechanical stop, allowing you to trim the effective travel back by up to 20 mm from the nominal 475 mm stroke. This creates a usable travel window of 455 to 475 mm for fine-tuning end positions without altering the cylinder mount.
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